Commit-ID: c66e45edef51e1f54297ddaf202fc2dd00852734
Gitweb: http://git.kernel.org/tip/c66e45edef51e1f54297ddaf202fc2dd00852734
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Wed, 23 Apr 2014 19:57:49 +0200
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 27 Jul 2015 14:06:22 +0200
m32r: Provide atomic_{or,xor,and}
Implement atomic logic ops -- atomic_{or,xor,and}.
These will replace the atomic_{set,clear}_mask functions that are
available on some archs.
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/m32r/include/asm/atomic.h | 44 ++++++++++--------------------------------
1 file changed, 10 insertions(+), 34 deletions(-)
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 31bb74a..7245463 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -94,6 +94,12 @@ static __inline__ int atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and)
+ATOMIC_OP(or)
+ATOMIC_OP(xor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -240,44 +246,14 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
}
-static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t *addr)
+static __inline__ __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
{
- unsigned long flags;
- unsigned long tmp;
-
- local_irq_save(flags);
- __asm__ __volatile__ (
- "# atomic_clear_mask \n\t"
- DCACHE_CLEAR("%0", "r5", "%1")
- M32R_LOCK" %0, @%1; \n\t"
- "and %0, %2; \n\t"
- M32R_UNLOCK" %0, @%1; \n\t"
- : "=&r" (tmp)
- : "r" (addr), "r" (~mask)
- : "memory"
- __ATOMIC_CLOBBER
- );
- local_irq_restore(flags);
+ atomic_and(~mask, v);
}
-static __inline__ void atomic_set_mask(unsigned long mask, atomic_t *addr)
+static __inline__ __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
{
- unsigned long flags;
- unsigned long tmp;
-
- local_irq_save(flags);
- __asm__ __volatile__ (
- "# atomic_set_mask \n\t"
- DCACHE_CLEAR("%0", "r5", "%1")
- M32R_LOCK" %0, @%1; \n\t"
- "or %0, %2; \n\t"
- M32R_UNLOCK" %0, @%1; \n\t"
- : "=&r" (tmp)
- : "r" (addr), "r" (mask)
- : "memory"
- __ATOMIC_CLOBBER
- );
- local_irq_restore(flags);
+ atomic_or(mask, v);
}
#endif /* _ASM_M32R_ATOMIC_H */
--
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